Device forming a leak-proof connection between a rigid tube end and a flexible pipe, and method for making same
AssigneeManuli Auto France
InventorsDaniel Baron, Michel Brachet
Life of this patent
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Abstract
A device and a method for making a device for forming a leak-proof connection between a rigid tube end and the tip of a flexible pipe by crimping a metal sleeve portion onto the tip. The rigid tube end includes an end portion comprising a shoulder with a larger diameter than the tube. The device comprises a rigid insert having a cylindrical bore between both ends thereof and including on one side a tubular portion force-fitted into the tip of the pipe opposite the crimped part of the metal sleeve portion, and on the other side a portion provided with an outer flange having a matching shape and engaging the internal portion of the shoulder.
Claims12
A device for forming a leaktight connection between a rigid tube end-piece and one end of a flexible pipe comprising:
- a crimping part comprising a metal sleeve secured onto said one end of said flexible pipe;
- a terminal part formed in said rigid tube end-piece comprising shoulder means have a larger diameter than the diameter of the rigid tube end piece;
- and
- a rigid insert hollowed out from end to end by a cylindrical bore, said rigid insert having:
- a first side comprising a tubular part forcibly inserted into said one end of the flexible pipe facing said crimping part, and
- a second side comprising a part equipped with an external collar having a complementary shape to said shoulder means, and in abutment with said shoulder means, said collar being extended in a direction opposite the tubular part with respect to the collar by a tubular end-piece forcibly inserted over a determined length into a part of the rigid tube end-piece and including seal-type sealing means.
A method of making a device for providing a leaktight connection between a rigid tube end-piece and one end of a flexible pipe, comprising:
- forming a metal sleeve having shoulder means on a terminal part of the rigid tube end-piece;
- forcibly introducing an end-piece of determined length, fitted with a seal, of a rigid insert hollowed out from end to end by a cylindrical bore, the insert having an external collar, into a part of the rigid tube end-piece situated beyond the shoulder means, until said external collar comes into abutment with said shoulder means;
- introducing forcibly an opposite end of the rigid insert into the end of the flexible pipe;
- and
- crimping the metal sleeve, onto the flexible pipe.
Dependencies are inferred from the claim text.